National Grid PLC — AGM Information 2015

Jul 21, 2015

Dear Sir,

As scrutineer appointed for the purpose of the Poll taken at the Annual General Meeting of the Members of the Company held on 21 July 2015 I HEREBY CERTIFY that the result of the Poll is correctly set out as follows:-

VOTES	%	VOTES	%	VOTES	% of ISC	VOTES
FOR		AGAINST		TOTAL	VOTED	WITHHELD
Resolution 12,284,755,205	99.19	18,688,768	0.81	2,303,443,973	61.77%	30,700,747
Resolution 22,321,452,613	99.87	2,944,293	0.13	2,324,396,906	62.33%	9,756,136
Resolution 32,280,194,389	98.17	42,539,343	1.83	2,322,733,732	62.29%	11,414,168
Resolution 42,293,213,786	98.65	31,375,695	1.35	2,324,589,481	62.34%	9,558,807
Resolution 52,245,776,051	96.63	78,217,280	3.37	2,323,993,331	62.32%	10,153,830
Resolution 62,288,616,423	98.48	35,355,053	1.52	2,323,971,476	62.32%	10,175,965
Resolution 72,288,695,959	98.50	34,741,767	1.50	2,323,437,726	62.31%	10,709,833
Resolution 82,307,590,493	99.29	16,508,151	0.71	2,324,098,644	62.32%	10,048,797
Resolution 92,304,637,240	99.17	19,319,072	0.83	2,323,956,312	62.32%	10,191,038
Resolution 102,307,120,329	99.27	16,993,991	0.73	2,324,114,320	62.32%	10,032,912
Resolution 112,307,507,563	99.30	16,325,902	0.70	2,323,833,465	62.32%	10,313,657
Resolution 122,307,313,840	99.28	16,771,345	0.72	2,324,085,185	62.32%	10,061,937
Resolution 132,305,195,419	99.20	18,612,697	0.80	2,323,808,116	62.32%	10,336,745
Resolution 142,279,099,664	97.98	47,062,238	2.02	2,326,161,902	62.38%	7,956,503
Resolution 152,307,302,553	99.23	17,883,351	0.77	2,325,185,904	62.35%	8,932,501
Resolution 162,240,539,614	97.26	63,053,994	2.74	2,303,593,608	61.77%	30,554,181
Resolution 172,245,442,444	96.64	78,052,554	3.36	2,323,494,998	62.31%	10,624,947
Resolution 18*2,256,099,973	97.23	64,370,477	2.77	2,320,470,450	62.23%	14,635,967
Resolution 19*2,314,776,327	99.63	8,693,871	0.37	2,323,470,198	62.31%	10,649,008
Resolution 20*2,007,854,166	86.42	315,436,168	13.58	2,323,290,334	62.30%	10,828,869

Yours faithfully, Ruth Cole Relationship Manager